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How to keep environment variables when using sudo

...$_EXPORTS; do printf '%q=%q ' "$x" "${!x}"; done;) "$@" } # create a test script to call as sudo echo 'echo Forty-Two is $VAR42' > sudo_test.sh chmod +x sudo_test.sh export VAR42="The Answer to the Ultimate Question of Life, The Universe, and Everything." export _EXPORTS="_EXPORTS VAR1 VAR2 VA...
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A semantics for Bash scripts?

...me I need some little thing. Consequently, I can patchwork together little scripts that appear to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programming language. For example: What is the evaluation order? what are the scoping r...
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File upload progress bar with jQuery

...s-domain support, chunked and resumable file uploads. And they have sample scripts for multiple server languages(node, php, python and go). Demo url: https://blueimp.github.io/jQuery-File-Upload/. share | ...
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How do I detect IE 8 with jQuery?

...forget that you can also use HTML to detect IE8. <!--[if IE 8]> <script type="text/javascript"> ie = 8; </script> <![endif]--> Having that before all your scripts will let you just check the "ie" variable or whatever. ...
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Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?

...(but that "shebang line" does no harm, and will help if you ever copy that script to a platform with a Unix base, such as Linux, Mac, etc). share | improve this answer | foll...
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S3 Static Website Hosting Route All Paths to Index.html

I am using S3 to host a javascript app that will use HTML5 pushStates. The problem is if the user bookmarks any of the URLs, it will not resolve to anything. What I need is the ability to take all url requests and serve up the root index.html in my S3 bucket, rather than just doing a full redirect. ...
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Convert a Git folder to a submodule retrospectively?

... proceeding! The following bash snippets can be concatenated into one big script which should then be executed in the same folder where the repo repo-org lives. It is not recommended to copy and paste everything directly into a command window (even though I have tested this successfully)! 0. Prepa...
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What is the recommended way to use Vim folding for Python code

... This answer really needs a description. – sixtyfootersdude Feb 14 '11 at 19:40 add a comment  |  ...
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How to allow to accept only image files?

... Steps: 1. Add accept attribute to input tag 2. Validate with javascript 3. Add server side validation to verify if the content is really an expected file type For HTML and javascript: <html> <body> <input name="image" type="file" id="fileName" accept=".jpg,.jpeg,.png" onc...
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Why are my PowerShell scripts not running?

I wrote a simple batch file as a PowerShell script, and I am getting errors when they run. 9 Answers ...